Observation information
- date-obs: 2018-02-02
- time-obs: 14:03:28.974200000
- date-end: 2018-02-02
- time-end: 16:02:55.973000000
- obs_id: A04_174T01_9000001876
- exposure: 4446.84181481
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001876_12707cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12707cztM0_level2_quad_clean.evt
|
| Size (bytes) | 549,740,160 | 105,384,960 |
| Size | 524.3 MB
| 100.5 MB
|
| Events in quadrant A | 3,073,789 | 745,430 |
| Events in quadrant B | 5,595,192 | 631,605 |
| Events in quadrant C | 3,125,177 | 720,883 |
| Events in quadrant D | 4,450,033 | 676,433 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12807 | 2 |
| B | 0 | 20478 | 1 |
| C | 0 | 12978 | 1 |
| D | 0 | 17111 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5972 | 129 | 2.160080% |
| B | 5972 | 1178 | 19.725385% |
| C | 5972 | 94 | 1.574012% |
| D | 5972 | 390 | 6.530476% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 7168 | 5974 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7168 | 5974 | 864 | 864 | 12.05% | 14.46% |  |
| C | 7168 | 5974 | 5 | 5 | 0.07% | 0.08% |  |
| D | 7168 | 5974 | 340 | 340 | 4.74% | 5.69% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 12 | 189 | 24156 | 145.88 | 788 | 774 | 160.3 |
| A | 8 | 15 | 21410 | 128.75 | 788 | 774 | 160.3 |
| A | 0 | 226 | 6937 | 38.45 | 788 | 774 | 160.3 |
| B | 4 | 239 | 2761741 | 21054.27 | 696 | 681 | 131.1 |
| B | 4 | 81 | 30481 | 227.24 | 696 | 681 | 131.1 |
| B | 3 | 64 | 20920 | 154.33 | 696 | 681 | 131.1 |
| C | 15 | 208 | 188256 | 1088.91 | 752 | 761 | 172.2 |
| C | 13 | 61 | 5523 | 27.66 | 752 | 761 | 172.2 |
| C | 8 | 222 | 4260 | 20.32 | 752 | 761 | 172.2 |
| D | 1 | 52 | 1487991 | 8458.01 | 744 | 731 | 175.8 |
| D | 8 | 195 | 48368 | 270.91 | 744 | 731 | 175.8 |
| D | 13 | 104 | 43428 | 242.82 | 744 | 731 | 175.8 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |